CN109484260B - Safety belt anti-false touch device and child safety seat - Google Patents
Safety belt anti-false touch device and child safety seat Download PDFInfo
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- CN109484260B CN109484260B CN201710821133.9A CN201710821133A CN109484260B CN 109484260 B CN109484260 B CN 109484260B CN 201710821133 A CN201710821133 A CN 201710821133A CN 109484260 B CN109484260 B CN 109484260B
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- 230000007246 mechanism Effects 0.000 claims abstract description 216
- 230000009471 action Effects 0.000 claims abstract description 47
- 230000000903 blocking effect Effects 0.000 claims description 88
- 230000002265 prevention Effects 0.000 claims description 25
- 238000011084 recovery Methods 0.000 claims description 12
- 230000000670 limiting effect Effects 0.000 claims description 9
- 230000002829 reductive effect Effects 0.000 description 7
- 230000036961 partial effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2803—Adaptations for seat belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2803—Adaptations for seat belts
- B60N2002/2815—Adaptations for seat belts with additional belt accessories, e.g. a belt tension detector
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention relates to a safety belt false touch preventing device and a child safety seat, wherein the safety belt false touch preventing device is arranged at the front end of a seat body and comprises a safety belt locking piece and a button mechanism, and the safety belt locking piece can carry out unidirectional locking on a safety belt connected with the seat in a natural state; the safety belt anti-false touch device is characterized by further comprising an anti-false touch mechanism, wherein the anti-false touch mechanism can limit the action of external force on the button mechanism so as to unlock or unlock the button mechanism by the anti-false touch mechanism, and then the button mechanism can be operated to unlock the safety belt locking piece. Under the limitation of the anti-false touch mechanism, the child sits on the seat body and cannot directly unlock the safety belt locking piece, so that potential safety hazards caused by unlocking of the safety belt to riding of the child due to false touch are avoided as much as possible.
Description
Technical Field
The invention relates to the field of child safety, in particular to a safety belt false touch preventing device and a child safety seat.
Background
The child safety seat is a special seat which is arranged on an automobile seat, is used for a child to sit and is used for restraining the child through a restraint device, and the child safety can be ensured to the greatest extent by restraining the child when an automobile accident occurs. The conventional restraint device for the child safety seat is a five-point type safety belt, and the tail end of the safety belt connected with a main buckle of the safety belt extends out from the front end of the child safety seat and is locked by a locking mechanism. When an adult wants to adjust the length of the safety belt, the unlocking button at the front end of the child safety seat can be pressed down, and the unlocking button can trigger the locking mechanism to unlock in the downward movement process, so that the unlocked safety belt can be freely adjusted, and the restraint degree of the safety belt to the child can be adjusted.
Such an unlock button is typically located at the front end of the child safety seat and is easily touched by a child carelessly or for curiosity. Although the unlocking button often needs to be subjected to a certain external force to unlock, when a child applies a larger pressing force to the unlocking button, or the unlocking button is triggered by a lighter pressure due to unreasonable design of the unlocking force of the unlocking button, serious injury accidents can be possibly caused, and therefore potential safety hazards caused by unlocking of the safety belt for riding of the child due to false touching cannot be ignored.
Disclosure of Invention
The invention aims to provide a safety belt anti-false touch device and a child safety seat, which can eliminate potential safety hazards caused by false touch of a safety belt unlocking button as much as possible.
In order to achieve the above object, the present invention provides a safety belt anti-false touch device, which is installed at the front end of a seat body, and includes a safety belt locking member and a button mechanism, wherein the safety belt locking member can perform unidirectional locking on a safety belt connected with the seat in a natural state; the safety belt anti-false touch device further comprises an anti-false touch mechanism, and the anti-false touch mechanism can limit the action of external force on the button mechanism so as to enable the button mechanism to be unlocked or unprotected by the anti-false touch mechanism, and then the button mechanism can be operated to unlock the safety belt locking piece.
Further, the anti-false touch mechanism is connected with the button mechanism and can move synchronously with the button mechanism, and the action of unlocking the button mechanism by the anti-false touch mechanism comprises: the external force drives the button mechanism and the anti-false touch mechanism to move along a preset direction by a preset stroke, so that the anti-false touch mechanism leaves from a blocking position of the button mechanism in a natural state, and the preset direction is different from the unlocking direction of the button mechanism to the safety belt locking piece.
Further, the anti-false touch mechanism is operatively connected to the button mechanism, and the action of the anti-false touch mechanism to unlock the button mechanism includes: the external force drives the mistaken touch prevention mechanism to move in the unlocking direction of the safety belt locking piece to a blocking position when the mistaken touch prevention mechanism is away from a natural state.
Further, the anti-false touch mechanism is disposed at the outer side of the button mechanism, and is capable of physically isolating the button mechanism from the outside in a natural state, and the action of the anti-false touch mechanism for releasing the protection of the button mechanism includes: the external force drives the mistaken touch prevention mechanism to leave a protection position which enables the button mechanism to be physically isolated from the outside in a natural state.
Further, the device also comprises an anti-false touch recovery mechanism, which is used for recovering the locking position or the protection position of the anti-false touch mechanism to the button mechanism when the external force is lost after the anti-false touch mechanism unlocks or releases the protection to the button mechanism.
Further, the device also comprises an anti-false touch holding mechanism which is used for maintaining the state that the anti-false touch mechanism is unlocked or unlocked for the button mechanism when the external force is lost after the anti-false touch mechanism is unlocked or unlocked for the button mechanism.
Further, the button mechanism comprises a front decorative cover and a button, wherein a driving part is arranged on the button and can drive the safety belt locking piece to release the locking state of the safety belt when the button moves downwards; the front decorative cover is provided with a slide hole, the button is movably arranged in the slide hole and can move in the slide hole along the preset direction for a preset stroke, the anti-false touch mechanism can limit the button to move downwards under the natural state without being driven by external force, and when the button is pushed by external force along the preset direction, the button can be released from the limitation of the downward movement of the button after the preset stroke of the movement in the slide hole.
Further, the front decorative cover is provided with a rotating shaft, the false touch preventing mechanism comprises a sliding groove part fixedly connected with or integrally arranged with the button, the rotating shaft penetrates through the sliding groove part and can move along the sliding groove part, when the button moves in the preset direction in the sliding hole, the rotating shaft also moves reversely relative to the sliding groove part, when the button is in a natural state, the sliding groove part is abutted to the front decorative cover, so that the button cannot rotate relative to the rotating shaft along the downward direction of the button, and after the button is pushed by external force along the preset direction, the sliding groove part is separated from the abutting position with the front decorative cover, so that the button can rotate relative to the rotating shaft along the downward direction of the button.
Further, the anti-false touch recovery mechanism comprises a reset mechanism arranged between the front decorative cover and one side of the button, and the button can be in a position where the button cannot be driven to move downwards by external force in a natural state.
Further, the button mechanism comprises a front decorative cover and a button, wherein a driving part is arranged on the button and can drive the safety belt locking piece to release the locking state of the safety belt when the button moves downwards; the anti-false touch mechanism comprises a blocking piece and an operation part, wherein the blocking piece is positioned in a downward movement space of the button in a natural state and is used for blocking the button from being pressed down by external force, and the operation part is operatively connected with the blocking piece and can enable the blocking piece to leave the downward movement space of the button under the action of external force so as to release the blocking action of the button pressed down by the external force.
Further, the operation portion includes a wrench, the wrench with the stopper fixed connection or integrative setting, just the wrench with the stopper can rotate for the pivot, when the wrench receives the exogenic action, can drive through leverage the stopper rotates and leaves the downward movement space of button.
Further, the operation part comprises a driving rod, the driving rod is installed on the front decorative cover and can move relative to the front decorative cover under the action of external force, the end part of the driving rod is opposite to the blocking piece, and the blocking piece can be pushed to leave the downward movement space of the button when the driving rod is driven by the external force.
Further, the anti-false touch recovery mechanism comprises a reset mechanism arranged between the blocking piece and the front decorative cover, and the blocking piece can be located in the downward movement space of the button in a natural state.
Further, the device comprises an anti-false touch holding mechanism, wherein the anti-false touch holding mechanism comprises an elastic element arranged in the driving rod and a through hole arranged on the front decorative cover, and when the driving rod is driven to move by external force, the elastic element can outwards protrude relative to the driving rod and enter the through hole when moving to the position where the through hole is located along with the driving rod, so that the blocking piece is located at a position away from the downward movement space of the button by limiting the movement of the driving rod.
Further, the device further comprises an unlocking block arranged at the bottom of the button, and the unlocking block can enter the through hole and push the elastic element back into the driving rod when the button is pressed down so as to release the movement restriction of the driving rod.
Further, a spring is arranged in a sliding cavity formed on the front decorative cover and used for enabling the driving rod to move, and the driving rod can be pushed back to an initial position corresponding to a natural state when the unlocking block pushes the elastic element back into the driving rod.
Further, the button mechanism comprises a front decorative cover and a button, the anti-false touch mechanism comprises a blocking cover connected to the front decorative cover, the blocking cover can form a closed space with the front decorative cover in a natural state, the pressed surface of the button is located in the closed space, so that the button is limited to be directly pressed down, and the blocking cover can release the closed space formed by the blocking cover and the front decorative cover under the action of external force to expose the pressed surface of the button.
Further, the anti-false touch recovery mechanism comprises a reset mechanism arranged between the front decorative cover and the blocking cover, and the blocking cover can be positioned at a position forming a closed space with the front decorative cover in a natural state.
In order to achieve the above object, the present invention provides a child safety seat, which comprises a seat body and the aforementioned safety belt anti-false contact device.
Based on the technical scheme, the action of external force on the button mechanism is limited by the anti-false touch mechanism, so that the button mechanism is unlocked or unprotected by the anti-false touch mechanism, and then the button mechanism can be operated to unlock the safety belt locking piece. Under the limitation of the anti-false touch mechanism, the child sits on the seat body and cannot directly unlock the safety belt locking piece, so that potential safety hazards caused by unlocking of the safety belt due to false touch to the child are avoided as much as possible.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a child safety seat according to an embodiment of the present invention.
Fig. 2 is an exploded view of the embodiment of the safety belt anti-false touch device in the embodiment of fig. 1.
Fig. 3 and 4 are schematic partial cross-sectional views illustrating different states of an embodiment of a safety belt anti-false touch device according to the present invention.
Fig. 5 is a schematic view of the button and front cover in the embodiment of fig. 3 from the bottom perspective.
Fig. 6 and 7 are schematic partial cross-sectional views of different states of another embodiment of the safety belt anti-false touch device of the present invention.
Fig. 8 is a schematic partial cross-sectional view of a further embodiment of a belt anti-false touch device according to the present invention.
Fig. 9 is a schematic cross-sectional view of the mechanism surrounding the drive rod in the embodiment of fig. 8.
FIG. 10 is a schematic structural view of another embodiment of the child safety seat of the present invention.
Fig. 11 and 12 are schematic partial cross-sectional views illustrating different states of a further embodiment of a safety belt anti-false touch device according to the present invention.
Fig. 13 is a schematic partial cross-sectional view of the embodiment of fig. 11.
Description of the reference numerals
1-A seat body; 2A, 2B, 2C, 2D-buttons; 3A, 3B, 3C, 3D-front decorative covers; 4-a safety belt; 5A, 5B, 5C, 5D-belt locks; 6A, 6B, 6C, 6D-reset mechanism; 7A-wrenches; 7B-a drive rod; 8A, 8B-barriers; 9-a blocking cover; 11-mounting slots; 21A, 21B, 21C, 21D-driving sections; 23-a chute portion; 24-bulge; 25-unlocking the block; 26-a limiting part; 31-a rotating shaft; 32-through holes; 73-an elastic element; 74-spring.
Detailed Description
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
For the safety risk brought by the false touching of the safety belt unlocking mechanism by children, the inventor finds that the false touching caused by the unconsciousness of the children is generally simpler in action, and if the action of unlocking the safety belt is complicated, the possibility of abnormal unlocking of the safety belt caused by the false touching can be effectively reduced. Based on the thought, the invention provides a safety belt anti-false touch device which is arranged at the front end of a seat body and comprises a safety belt locking piece and a button mechanism, wherein the safety belt locking piece can carry out unidirectional locking on a safety belt connected with the seat in a natural state; the safety belt anti-false touch device further comprises an anti-false touch mechanism, wherein the anti-false touch mechanism can limit the action of external force on the button mechanism so as to enable the button mechanism to be unlocked or unprotected by the anti-false touch mechanism, and then the button mechanism can be operated to unlock the safety belt locking piece. The natural state is a state in which the pointer is not subjected to an external force with respect to the seatbelt anti-false device.
In this embodiment, the anti-false touch mechanism may limit the action of the external force on the button mechanism, so that the button mechanism is unlocked or unprotected by the anti-false touch mechanism before the button mechanism is operated to unlock the seat belt locking member. In other words, the action of operating the button mechanism to unlock the webbing lock must be sequentially later than the action of the false touch prevention mechanism to unlock or unlock the button mechanism. Therefore, under the limitation of the anti-false touch mechanism, a child sits on the seat body and cannot directly unlock the safety belt locking piece, even if the child tries unlocking operation because of curiosity, the child cannot complete the unlocking operation because of the complex unlocking process realized by the anti-false touch mechanism, so that potential safety hazards caused by unlocking of the safety belt to riding of the child due to false touch are avoided as much as possible.
The adult operator who operates the unlocking of the seat belt can perform free adjustment of the seat belt over a certain length after the above-mentioned unlocking actions are completed in sequence, and can reset the erroneous touch preventing mechanism and the seat belt locking member by means of manual restoration after the adjustment of the seat belt length. For convenience, it is preferable that the safety belt erroneous touch prevention device further includes an erroneous touch prevention restoration mechanism for restoring a locked position or a protected position of the erroneous touch prevention mechanism with respect to the button mechanism when an external force is lost after the erroneous touch prevention mechanism unlocks or releases the protection of the button mechanism. Therefore, the potential safety hazard left when the anti-false mechanism and the safety belt locking piece are reset after the safety belt is adjusted can be avoided as much as possible.
In addition, the unlocking or unlocking action of the front button mechanism and the unlocking action of the rear safety belt locking piece can be continuous, namely, an adult operator needs to firstly execute the unlocking or unlocking action of the button mechanism and continue to execute the unlocking action of the safety belt locking piece under the state of keeping the action, so that the complexity of the action can be effectively increased, and the risk of unlocking the safety belt caused by false contact of a child is reduced. Of course, this also makes it inconvenient for an adult operator to operate, so in another embodiment, the safety belt erroneous touch prevention device may further include an erroneous touch prevention holding mechanism for maintaining a state in which the erroneous touch prevention mechanism unlocks or releases the button mechanism when an external force is lost after the erroneous touch prevention mechanism unlocks or releases the button mechanism. Therefore, after unlocking or protecting the button mechanism, the state is maintained without applying force all the time, so that the difficulty of unlocking operation is reduced.
Based on different specific implementation modes of the anti-false touch mechanism, the invention provides a plurality of corresponding safety belt anti-false touch device embodiments. The anti-false touch mechanism of the safety belt anti-false touch device is connected with the button mechanism and can synchronously move along with the button mechanism. And the action of unlocking the button mechanism by the false touch prevention mechanism comprises the following steps: the external force drives the button mechanism and the anti-false touch mechanism to move along a preset direction by a preset stroke, so that the anti-false touch mechanism leaves from a blocking position of the button mechanism in a natural state, and the preset direction is different from the unlocking direction of the button mechanism to the safety belt locking piece.
For the present embodiment, fig. 1 to 5 show a specific implementation structure of an anti-false touch mechanism. Referring to fig. 2 to 5, the button mechanism may include a front decorative cover 3A and a button 2A, wherein a driving part 21A is provided on the button 2A, and the driving part 21A is capable of driving the belt locking member 5A to release the locking state of the seat belt 4 when the button 2A moves downward. The front trim cover 3A may be mounted in the mounting groove 11 of the front end of the seat body 1 in fig. 1, and the push button 2A and the webbing lock 5A are located in the space surrounded by the front trim cover 3A and the mounting groove 11. As can also be seen from fig. 2, the front cover 3A is provided with a structure that is engaged with the side edge of the mounting groove 11, so as to facilitate the mounting of the front cover 3A and the button 2A at the front end of the seat body 1.
Referring to fig. 3 and 4, the seat belt 4 passes between the bottom of the mounting groove 11 and the seat belt lock 5A and is locked by friction force when the seat belt lock 5A is pressed, if it is desired to adjust the seat belt 4, the seat belt lock 5A must be driven to leave the locking position, and a driving portion 21A is provided below the button 2A in fig. 3, and when the button 2A moves downward, the driving portion 21A pushes the seat belt lock 5A to rotate along with the movement of the button 2A, so that the pressing action of the seat belt lock 5A on the seat belt 4 is reduced to reduce friction force, or the seat belt lock 5A is released from contact with the seat belt 4, and the seat belt lock 4 is unlocked in any manner.
In order to realize the unlocking action of the button mechanism by the false touch prevention mechanism of the present embodiment, a slide hole may be provided on the front bezel 3A, and the button 2A may be movably provided in the slide hole. The button 2A is able to move a preset stroke in the preset direction within the slide hole. The size of the slide hole in the preset direction is larger than the outer dimension of the button 2A, so that the button 2A can smoothly slide in the slide hole in the preset direction. The preset direction is different from the direction in which the downward-facing webbing lock member 5A of the push button 2A is triggered.
The anti-false touch mechanism of the embodiment can limit the button 2A from being driven to move downwards by external force in a natural state, and can release the limitation of the downward movement of the button 2A after the button 2A moves in the sliding hole by a preset stroke when the button 2A is pushed by external force along the preset direction. In other words, the button 2A in the natural state is restricted from moving downward by the anti-false mechanism to trigger the webbing lock member 5A, and once the button 2A moves another position in the preset direction by the external force, the button 2A is not restricted from moving downward, so that the webbing lock member 5A can be moved downward by the external force to leave the lock position.
Referring to fig. 3 to 5, a rotary shaft 31 may be disposed on the front decorative cover 3A, and the anti-false touch mechanism includes a chute portion 23 fixedly connected to or integrally provided with the button 2A, and the rotary shaft 31 is disposed in the chute portion 23 in a penetrating manner, and is capable of moving along the chute portion 23. When the button 2A moves in the preset direction in the sliding hole, the rotating shaft 31 also moves reversely relative to the sliding groove portion 23, and when the button 2A is in a natural state (i.e., the position shown in fig. 4), the sliding groove portion 23 abuts against the front decorative cover 3A, and the front decorative cover 3A applies an insurmountable moment on one side of the rotating shaft 31, so that the moment action of the front decorative cover 3A cannot be overcome even if a larger pressure is applied to the button 2A on the other side of the rotating shaft 31, and the button 2A cannot rotate relative to the rotating shaft 31 in the downward direction of the button 2A, thereby realizing the limitation of the unlocking action of the safety belt locking member. Only after the button 2A is pushed by an external force in the preset direction by a preset stroke (i.e., the position shown in fig. 3), the slide groove 23 is separated from the abutting position with respect to the front decorative cover 3A, so that the button 2A can rotate in a downward direction of the button 2A with respect to the rotation shaft 31. When the adult operator presses the button 2A at this time, the button 2A can be moved downward, and triggering of the webbing lock 5A can be achieved.
In this embodiment, the device may further include a false touch preventing recovery mechanism, which may include a reset mechanism 6A disposed between the front bezel 3A and one side of the button 2A, and may be capable of causing the button 2A to be in a position where it cannot be driven to move downward by an external force in a natural state. Referring to fig. 3 and 4, the return mechanism 6A may be implemented by a compression spring, that is, the button 2A is pushed to maintain the position shown in fig. 4 in a natural state of the compression spring, and after the button 2A moves to the position shown in fig. 3 under the action of an external force, if the external force is lost, the return mechanism 6A returns the button 2A to the position shown in fig. 4 under the action of an elastic force.
In another belt anti-false touch device embodiment, an anti-false touch mechanism may be operably connected to the button mechanism, the action of the anti-false touch mechanism unlocking the button mechanism comprising: the external force drives the mistaken touch prevention mechanism to move in the unlocking direction of the safety belt locking piece to a blocking position when the mistaken touch prevention mechanism is away from a natural state.
For the false touch preventing mechanism of the present embodiment, fig. 6 to 7 and fig. 8 to 9 show two different specific implementation structures of the false touch preventing mechanism, respectively. In fig. 6 to 7, the button mechanism includes a front cover 3B and a button 2B, and a driving portion 21B is provided on the button 2B, and the driving portion 21B is capable of driving the webbing lock member 5B to release the locked state of the webbing when the button 2B moves downward. The anti-false touch mechanism comprises a blocking piece 8A and an operation part, wherein the blocking piece 8A is positioned in a downward movement space of the button 2B in a natural state and blocks the button 2B from being pressed down by external force, and the operation part is operatively connected with the blocking piece 8A and can enable the blocking piece 8A to leave the downward movement space of the button 2B under the action of external force so as to release the blocking effect of the button 2B pressed down by the external force. Thus, when the push button 2B receives a downward pressing force, the driving portion 21B pushes the belt lock 5B to rotate in response to the downward movement of the push button 2B, and accordingly, the pressing action of the belt lock 5B on the seat belt 4 is reduced to reduce the friction, or the belt lock 5B is released from contact with the seat belt 4, and the belt lock 5B is unlocked in any manner.
As can be seen from fig. 6, the blocking member 8A is in its natural state resting on the protuberance 24 below the push button 2B. In another embodiment, the protrusion 24 may not be provided under the button 2B, and the blocking member 8A may directly abut against the lower surface of the button 2B. The outer periphery of the button 2B may be provided with a limiting portion 26, and when the button 2B is mounted in the inner hole of the front decorative cover 3B, the retention of the button 2B may be achieved by the limiting effect of the limiting portion 26 and the inner hole wall.
For the convenience of unlocking the anti-false mechanism, the operation portion may include a wrench 7A, where the wrench 7A is fixedly connected with the blocking member 8A or integrally provided, and the wrench 7A and the blocking member 8A may rotate relative to the rotating shaft. When the wrench 7A is subjected to an external force, the blocking member 8A can be rotated by leverage to leave the downward movement space of the button 2B (refer to the position shown in fig. 7). When the blocking member 8A is out of abutment with the projection 24 below the push button 2B, the push button 2B can move downward when receiving a downward pressing force, and the webbing lock member 5B is pushed out of the lock position where the webbing 4 is pressed by the driving portion 21B.
The wrench 7A may be disposed on the opposite side of the button 2B with respect to the front cover 3B, so that when the user performs an unlocking operation, after the wrench is moved by using a part of fingers of one hand, the user can press the button by using other fingers, thus simplifying the unlocking operation of the user, and the operation cannot be completed for the palm of the child, thereby ensuring the effect of preventing erroneous touch.
In this embodiment, the device may further include a false touch preventing recovery mechanism, which may include a reset mechanism 6B provided between the blocking member 8A and the front decorative cover 3B, which enables the blocking member to be in a downward movement space of the button in a natural state. The return mechanism 6B may employ a tension spring as shown in fig. 6, one end of which is attachable to the front trim cover 3B and the other end of which is attached to the stopper 8A, and the stopper 8A is held in a position abutting against the boss 24 below the button 2B in a natural state by an elastic force. When the adult operator pulls the wrench 7A, the blocking member 8A can be driven to leave the abutting position against the elastic force of the tension spring, and when the adult operator releases the wrench 7A, the tension spring can drive the blocking member 8A and the wrench 7A to return to the initial positions corresponding to the natural state.
The part of the structure of the safety belt anti-false touch device shown in fig. 8-9 is similar to the previous embodiment, the button mechanism comprises a front decorative cover 3C and a button 2C, a driving part 21C is arranged on the button 2C, and the driving part 21C can drive the safety belt locking piece 5C to release the locking state of the safety belt when the button 2C moves downwards. The anti-false touch mechanism comprises a blocking piece 8B and an operation part, wherein the blocking piece 8B is positioned in a downward movement space of the button 2C in a natural state and blocks the button 2C from being pressed down by external force, and the operation part is operatively connected with the blocking piece 8B and can enable the blocking piece 8B to leave the downward movement space of the button 2C under the action of external force so as to release the blocking effect of the button 2C pressed down by the external force. Thus, when the push button 2C receives a downward pressing force, the driving portion 21C pushes the belt lock 5C to rotate in response to the downward movement of the push button 2C, and accordingly reduces the pressing action of the belt lock 5C on the seat belt 4 to reduce the friction, or releases the belt lock 5C from contact with the seat belt 4, in any way releasing the lock of the belt lock 5C on the seat belt 4.
Unlike the previous embodiment, the operation part of the present embodiment includes a driving lever 7B, the driving lever 7B is mounted on the front bezel 3C and is capable of moving relative to the front bezel 3C under the action of an external force, and an end of the driving lever 7B faces the blocking member 8B, so that the blocking member 8B can be pushed away from the downward movement space of the button 2C when the driving lever 7B is driven by the external force. In fig. 8, it can be seen that the outside of the driving lever 7B may be provided with a tip that is convenient for the pressing of a finger or palm, and the driving lever 7B is provided with a sliding cavity formed on the front decorative cover 3C for the movement of the driving lever 7B. When an adult operator presses the end of the driving rod 7B, the driving rod 7B moves inward along the sliding chamber under the action of force, and the end inside the driving rod 7B correspondingly applies a pushing force to the blocking member 8B from the side of the blocking member 8B, so that the blocking member 8B leaves the downward movement space of the push button 2C. As can be seen from fig. 9, the blocking member 8B can be rotated about the rotation axis to a position away from the downward movement space of the push button 2C when the side is pushed. Of course, in addition to the rotation, the blocking member 8B may be moved away from the downward movement space of the button 2C by a linear movement in another embodiment. While the projection 24 below the button 2C is no longer blocked by the blocking member 8B, so that the driving portion 21C of the button 2C can push the webbing lock member 5C out of the locking position of the webbing 4 when the adult operator presses the button 2C.
In this embodiment, the device may further include a false touch preventing recovery mechanism, which may include a reset mechanism 6C disposed between the blocking member and the front decorative cover, and may enable the blocking member to be in a downward movement space of the button in a natural state. The return mechanism 6C may employ a tension spring as shown in fig. 9, one end of which is attachable to the front trim cover 3C and the other end of which is attached to the stopper 8B, and the stopper 8B is held in a position abutting against the boss 24 below the button 2C in a natural state by an elastic force. When the adult operator presses the driving rod 7B, the elastic force of the tension spring can be overcome by the pushing force of the driving rod 7B to the blocking member 8B, so that the blocking member 8A leaves the downward movement space of the button 2C, and when the driving rod 7B is no longer acted by external force, the tension spring can drive the blocking member 8B and the driving rod 7B to return to the initial position in the natural state.
In this embodiment, an anti-false touch holding mechanism may be further added so that the drive lever can still be held in a position that pushes the blocking member away from the downward movement space of the button when the drive lever is no longer biased after the drive lever is depressed. Referring to fig. 9, the false touch preventing holding mechanism may include an elastic member 73 provided in the driving lever 7B and a through hole 32 provided on the front trim cover 3C. In a natural state, the elastic member 73 is compressed inside the driving rod 7B by the cavity wall of the sliding cavity of the front trim cover 3C. When the driving rod 7B is driven to move by an external force, the elastic element 73 moves synchronously with the driving rod 7B, and when the elastic element 73 moves to the position where the through hole 32 is located, the elastic element 73 is not limited by the cavity wall of the sliding cavity, so that the elastic element can protrude outwards relative to the driving rod 7B and enter the through hole 32 under the elastic action. Since the other end of the elastic member 73 that enters the through hole 32 is still connected to the inside of the driving rod 7B, the elastic member 73 forms an obstacle to the movement of the driving rod 7B, so that the driving rod 7B is restrained from moving when it is not subjected to an external force, and its restrained position is such that the stopper 8B is being in a position away from the downward movement space of the push button 2C.
It is considered that if the movement restriction of the driving lever 7B is to be released, the elastic member 73 needs to be retracted inside the driving lever 7B. The action of the push of the button can be thus decoupled from the movement limitation of the actuating lever, i.e. an unlocking block 25 is added to the bottom of said button 2C. Referring to fig. 9, when the unlocking piece 25 is pressed with the push button 2C, it can enter the through hole 32 and push the elastic member 73 back into the driving lever 7B to release the movement restriction of the driving lever 7B. In addition, a spring 74 may be provided in a sliding cavity formed in the front cover 3C in which the driving lever 7B moves, and when the unlocking block 25 withdraws the elastic member 73 into the driving lever 7B, the driving lever 7B may be pushed out to an initial position corresponding to a natural state by the spring 74. Of course, in another embodiment, instead of providing a resilient element inside the driving rod and a corresponding unlocking block and spring, other structures and corresponding release structures may be employed that are capable of directly or indirectly limiting the retention of the blocking member in a position away from the downward movement space of the push button.
In another embodiment of the safety belt anti-false touch device, the anti-false touch mechanism may be disposed outside the button mechanism, which is capable of physically isolating the button mechanism from the outside in a natural state. Correspondingly, the action of the error touch prevention mechanism for removing the protection of the button mechanism comprises the following steps: the external force drives the mistaken touch prevention mechanism to leave a protection position which enables the button mechanism to be physically isolated from the outside in a natural state.
Referring to fig. 10 to 13, the button mechanism includes a front decorative cover 3D and a button 2D, the false touch preventing mechanism includes a blocking cover 9 connected to the front decorative cover 3D, the blocking cover 9 can form a closed space with the front decorative cover 3D in a natural state, a pressed surface of the button 2D is positioned in the closed space, thereby limiting the button 2D from being directly pressed, and the blocking cover 9 can release the closed space formed with the front decorative cover 3D under the action of an external force so as to expose the pressed surface of the button 2D. Thus, when the push button 2D receives a downward pressing force, the driving portion 21D pushes the belt lock 5D to rotate in response to the downward movement of the push button 2D, and accordingly, the pressing action of the belt lock 5D on the seat belt 4 is reduced to reduce the friction, or the belt lock 5D is released from contact with the seat belt 4, and the belt lock 5D is unlocked in any manner.
The blocking cover 9 can keep the covering effect on the button 2D through an elastic locking structure or a clamping structure, so that the child cannot directly touch the button 2D, and the safety risk when the button 2D is touched by mistake is reduced to a great extent. The adult operator can push the push button 2D continuously in this state by moving the blocking cover 9 away from the position where the push button 2D is blocked by the urging force of the blocking cover 9, so that the driving portion 21D of the push button 2D pushes the webbing lock member 5D away from the lock position where the webbing 4 is pressed. The embodiment can be realized by additionally arranging the blocking cover on the basis of the existing button structure, so that a good safety belt anti-false effect can be obtained by simply modifying the existing child safety seat.
In this embodiment, the front decorative cover may further include an anti-false touch recovery mechanism, and the anti-false touch recovery mechanism may specifically include a reset mechanism 6D disposed between the front decorative cover 3D and the blocking cover 9, so that the blocking cover 9 may be located in a position that forms a closed space with the front decorative cover 3D in a natural state. Referring to fig. 12, the return mechanism 6D may employ a torsion spring, and the blocking cover 9 may be pressed against the upper side of the front decorative cover 3D without being subjected to external force by the elastic force of the torsion spring, and cover the button 2D. When the adult operator wishes to adjust the length of the seat belt, he can push the blocking cover 9 upwards by hand, overcome the elastic force of the torsion spring by pushing force, and then press the button 2D by hand. And when the blocking cover 9 loses the external force, the elastic force of the torsion spring can restore the blocking cover 9 to the initial position corresponding to the natural state, namely to the position forming the closed space with the front decorative cover 3D.
The embodiments of the safety belt anti-false touch device can be applied to various seats with safety belts and anti-false touch requirements, and are particularly suitable for being applied to child safety seats. Accordingly, the invention also provides a child safety seat comprising a seat body and any one of the safety belt anti-false contact device embodiments described above. The child safety seat can effectively avoid potential safety hazards caused by unlocking of the safety belt due to false touch.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (16)
1. The safety belt anti-false touch device is arranged at the front end of a seat body and comprises a safety belt locking piece and a button mechanism, wherein the safety belt locking piece can carry out unidirectional locking on a safety belt connected with the seat in a natural state; the safety belt anti-false touch device is characterized by further comprising an anti-false touch mechanism, wherein the anti-false touch mechanism can limit the action of external force on the button mechanism so as to unlock or unlock the button mechanism by the anti-false touch mechanism before the button mechanism is operated to unlock the safety belt locking piece;
The anti-false touch mechanism is connected with the button mechanism and can synchronously move along with the button mechanism, and the action of unlocking the button mechanism by the anti-false touch mechanism comprises the following steps of: the external force drives the button mechanism and the anti-false touch mechanism to move along a preset direction by a preset stroke, so that the anti-false touch mechanism leaves from a blocking position of the button mechanism in a natural state, and the preset direction is different from the unlocking direction of the safety belt locking piece by the button mechanism;
The button mechanism comprises a front decorative cover and a button, the front decorative cover is arranged in a mounting groove at the front end of the seat body, and the button and the safety belt locking piece are positioned in a space surrounded by the front decorative cover and the mounting groove; the button is provided with a driving part which can drive the safety belt locking piece to release the locking state of the safety belt when the button moves downwards; the front decorative cover is provided with a sliding hole, the button is movably arranged in the sliding hole and can move in the sliding hole along the preset direction by a preset stroke, the anti-false touch mechanism can limit the button to move downwards under the natural state and can release the limitation of the downward movement of the button after the button moves in the sliding hole by the preset stroke when the button is pushed by the external force along the preset direction; the front decorative cover is provided with a rotating shaft, the false touch preventing mechanism comprises a sliding groove part fixedly connected with or integrally arranged with the button, the rotating shaft penetrates through the sliding groove part and can move along the sliding groove part, when the button moves in the preset direction in the sliding hole, the rotating shaft also moves reversely relative to the sliding groove part, when the button is in a natural state, the sliding groove part is abutted against the front decorative cover, so that the button cannot rotate relative to the rotating shaft along the downward direction of the button, and after the button is pushed by external force along the preset direction, the sliding groove part is separated from the abutting position with the front decorative cover, so that the button can rotate relative to the rotating shaft along the downward direction of the button.
2. The seatbelt anti-false touch device according to claim 1, wherein said anti-false touch mechanism is operatively connected with said button mechanism, said action of said anti-false touch mechanism unlocking said button mechanism comprising: the external force drives the mistaken touch prevention mechanism to move in the unlocking direction of the safety belt locking piece to a blocking position when the mistaken touch prevention mechanism is away from a natural state.
3. The safety belt false touch preventing device according to claim 1, wherein the false touch preventing mechanism is provided outside the button mechanism, and is capable of physically isolating the button mechanism from the outside in a natural state, and the action of the false touch preventing mechanism to release the protection of the button mechanism includes: the external force drives the mistaken touch prevention mechanism to leave a protection position which enables the button mechanism to be physically isolated from the outside in a natural state.
4. The seatbelt false touch preventing apparatus according to claim 1, further comprising a false touch preventing restoring mechanism for restoring a locked position or a protected position of the false touch preventing mechanism with respect to the push button mechanism when an external force is lost after unlocking or unprotected of the push button mechanism by the false touch preventing mechanism.
5. The seatbelt false touch preventing apparatus according to claim 1, further comprising a false touch preventing holding mechanism for maintaining a state in which the false touch preventing mechanism releases the lock or the release of the protection for the push button mechanism when an external force is lost after the false touch preventing mechanism releases the lock or the release of the protection for the push button mechanism.
6. The safety belt false touch prevention device according to claim 1, further comprising a false touch prevention recovery mechanism including a reset mechanism provided between the front trim cover and one side of the button, capable of causing the button to be in a position where it cannot be driven downward by an external force in a natural state.
7. The seatbelt anti-false touch device according to claim 2, wherein the button mechanism comprises a front trim cover and a button, a driving portion is provided on the button, the driving portion is capable of driving the seatbelt locking member to release the locked state of the seatbelt when the button moves downward; the anti-false touch mechanism comprises a blocking piece and an operation part, wherein the blocking piece is positioned in a downward movement space of the button in a natural state and is used for blocking the button from being pressed down by external force, and the operation part is operatively connected with the blocking piece and can enable the blocking piece to leave the downward movement space of the button under the action of external force so as to release the blocking action of the button pressed down by the external force.
8. The erroneous touch prevention device according to claim 7, wherein the operation portion includes a wrench fixedly connected to or integrally provided with the stopper, and the wrench and the stopper are rotatable with respect to the rotation shaft, and when the wrench is subjected to an external force, the stopper is rotated by leverage to leave a downward movement space of the push button.
9. The safety belt false touch preventing device according to claim 7, wherein the operating part includes a driving lever mounted on the front trim cover and capable of moving relative to the front trim cover under an external force, an end of the driving lever facing the blocking member, and the driving lever being capable of pushing the blocking member away from a downward movement space of the button when driven by the external force.
10. The seatbelt false touch preventing apparatus according to claim 7, further comprising a false touch preventing recovery mechanism including a reset mechanism provided between the blocking member and the front trim cover, capable of causing the blocking member to be in a downward movement space of the push button in a natural state.
11. The safety belt false touch preventing device according to claim 9, further comprising a false touch preventing holding mechanism including an elastic member provided in the driving lever and a through hole provided on the front trim cover, the elastic member being capable of protruding outward with respect to the driving lever and entering the through hole when the driving lever is moved by an external force to a position where the through hole is located, thereby causing the blocking member to be located at a position away from a downward movement space of the push button by restricting movement of the driving lever.
12. The seatbelt anti-false touch device according to claim 11, further comprising an unlocking block provided at a bottom of the push button, the unlocking block being capable of entering the through hole and pushing the elastic member back into the driving lever when the push button is pressed down, so as to release a movement restriction of the driving lever.
13. The erroneous touch prevention device according to claim 12, wherein a spring is provided in a sliding chamber formed in the front cover for movement of the driving lever, and is capable of pushing the driving lever back to an initial position corresponding to a natural state when the unlocking piece pushes the elastic member back into the driving lever.
14. A seatbelt anti-false touch device according to claim 3, wherein the button mechanism comprises a front trim cover and a button, the anti-false touch mechanism comprises a blocking cover attached to the front trim cover, the blocking cover is capable of forming a closed space with the front trim cover in a natural state, a pressed face of the button is located in the closed space, thereby limiting the button from being directly pressed, and the blocking cover is capable of releasing the closed space formed with the front trim cover under an external force to expose the pressed face of the button.
15. The seatbelt false touch preventing apparatus according to claim 14, further comprising a false touch preventing recovery mechanism including a reset mechanism provided between the front trim cover and the blocking cover, capable of causing the blocking cover to be in a position forming a closed space with the front trim cover in a natural state.
16. A child safety seat comprising a seat body and a safety belt anti-false device according to any one of claims 1 to 15.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821133.9A CN109484260B (en) | 2017-09-13 | 2017-09-13 | Safety belt anti-false touch device and child safety seat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710821133.9A CN109484260B (en) | 2017-09-13 | 2017-09-13 | Safety belt anti-false touch device and child safety seat |
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| CN109484260A CN109484260A (en) | 2019-03-19 |
| CN109484260B true CN109484260B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710821133.9A Active CN109484260B (en) | 2017-09-13 | 2017-09-13 | Safety belt anti-false touch device and child safety seat |
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| KR200396858Y1 (en) * | 2005-07-13 | 2005-09-27 | 이지홍 | Belt tentioning device for a baby car seat |
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| CN206456418U (en) * | 2016-12-24 | 2017-09-01 | 宋立新 | A kind of infant's vehicle frame |
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| US8256840B2 (en) * | 2010-06-10 | 2012-09-04 | Britax Child Safety, Inc. | Apparatus and method for attaching a child safety seat to a vehicle seat |
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|---|---|---|---|---|
| US6041480A (en) * | 1999-04-16 | 2000-03-28 | White; Paula | Seat belt lock cover |
| KR200396858Y1 (en) * | 2005-07-13 | 2005-09-27 | 이지홍 | Belt tentioning device for a baby car seat |
| KR20140091932A (en) * | 2013-01-14 | 2014-07-23 | 이지영 | Belt lock device of the infant car seat |
| CN104527469A (en) * | 2014-12-19 | 2015-04-22 | 好孩子儿童用品有限公司 | Child car safety seat with safety belt clamping devices |
| CN206217690U (en) * | 2016-11-25 | 2017-06-06 | gb有限公司 | The supporting leg of child safety seat, pedestal and child safety seat |
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| CN109484260A (en) | 2019-03-19 |
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